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Finding the Fourth Proportional to 494,484.48, 682,388.93 and 268,129.98

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Solution

The fourth proportional to 494,484.48, 682,388.93 and 268,129.98 is: 370,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,484.48 : 682,388.93 = 268,129.98 : x
  2. Step 2: Convert to fraction form
    494,484.48/682,388.93 = 268,129.98/x
  3. Step 3: Cross multiply
    494,484.48x = 682,388.93 × 268,129.98
  4. Step 4: Simplify right side
    494,484.48x = 182,968,928,812.47
  5. Step 5: Solve for x
    x = 182,968,928,812.47/494,484.48
  6. Step 6: Final answer
    x = 370,019.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.